-       Endpoint_Write_Stream_LE(&StringSizeInCharacters, sizeof(uint32_t));
-       Endpoint_Write_Stream_LE(&UnicodeStruct->UnicodeString, UnicodeStruct->LengthInBytes);
+       Endpoint_Write_Stream_LE(&StringSizeInCharacters, sizeof(uint32_t), NULL);
+       Endpoint_Write_Stream_LE(&UnicodeStruct->UnicodeString, UnicodeStruct->LengthInBytes, NULL);